| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 42.2 | 48.0 | 57.0 | 64.4 | 72.9 | 79.1 | 87.5 | 87.3 | 80.1 | 65.7 | 50.0 | 40.3 | 64.6 |
| Highest Mean Max. Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Max. Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Temperature (F) | 36.6 | 39.9 | 46.8 | 52.9 | 60.8 | 67.0 | 74.0 | 73.4 | 65.8 | 54.0 | 42.6 | 35.2 | 54.2 |
| Highest Mean Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Min. Temperature (F) | 31.0 | 31.8 | 36.6 | 41.5 | 48.6 | 54.8 | 60.4 | 59.5 | 51.6 | 42.3 | 35.3 | 30.2 | 43.7 |
| Highest Mean Min. Temperature (F) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Mean Min. Temperature (F) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Mean Precipitation (in.) | 2.50 | 1.77 | 1.16 | 0.79 | 0.69 | 0.52 | 0.16 | 0.23 | 0.47 | 0.99 | 2.14 | 2.73 | 14.15 |
| Highest Precipitation (in.) | |||||||||||||
| Year Highest Occurred | |||||||||||||
| Lowest Precipitation (in.) | |||||||||||||
| Year Lowest Occurred | |||||||||||||
| Heating Degree Days (F) | 880. | 703. | 564. | 363. | 168. | 46. | 4. | 3. | 63. | 345. | 670. | 922. | 4733. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 2. | 36. | 105. | 281. | 263. | 89. | 4. | 0. | 0. | 780. |